Bitcoin's short-term technical outlook shows a volatile uptrend pattern, with price approaching the upper Bollinger Band. The KDJ indicator has entered the overbought zone, suggesting that upward momentum is facing certain pressure, and pullback risks warrant attention.

From the current market perspective, price is still trading above key support levels, and bearish momentum has weakened, which will be more favorable for subsequent pullback long positions. If your trading style is swing trading, you can focus on the 90000-90300 entry zone. From a technical standpoint, 91500-91800 represents a reasonable profit-taking target, and a stop loss should be set if the price breaks below 89400.

Overall, the 90000-92000 range is the key operational zone. High selling and low buying while waiting for a clear directional breakthrough would be a more prudent strategy.